Table 3. Correlation coefficents matrix from Principle Component Analysis (PCA).

	Age implant	Dur deaf	CI exp	Pre/Post
Age test	0.91	0.75	−0.33	0.59
Age implant		0.56	−0.69	0.71
Dur deaf			0.03	0.11
CI exp				−0.59

Age test  =  age at testing; Age implant  =  age at implantation; Dur deaf  =  duration of deafness, CI exp  =  amount of experience with cochlear implant; Pre/Post  =  pre- or post-lingually deafened;